Electronic signatures such as use of passwords and smart cards are already quite popular in various transactions.With technological advancement ,digital signature-a new type of electronic signature is coming to the forefront.Simply stated it means use of some distinct digits in the place of one's signature.It is an electronic aid to authenticate the identify of the sender.It is the extra data attached to the message that identifies and authenticates the sender and ensures that the original message is not altered in any manner.In fact Digital signature is safer than a hand written are as it cannot be forged.But we cannot give 100 percent guarantee to this also.Here are also some loop holes are there .But compare with others ,Digital signatures will be better solution for online transactions
